Dual chamber mixing gun



FIG. 1 is a perspective view showing the new design for a dual chambermixing gun;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of the dual chamber mixing gun is included forthe purpose of illustrating portions of the article and forms no part ofthe claimed design.

The ornamental design for a dual chamber mixing gun, as shown anddescribed.